Plow.



E. H. THORESON.

PLOW.

APPLICATION FlLED DUI-9, I916.

- Lfimfiwm I Patentgd July 10, 1917.

ATT'O R N EV EDDIE I'I. TI-IORESON, OF CLIMAX, MINNESOTA.

PLOW.

Application filed December 9, 1916.

To all whom it may concern:

Be it known that I, EDDIE H. THonnsoN, a citizen of the United States, residing at Climax, in the county of Polk and State of Minnesota, have invented a new and useful Plow, of which the following is a specification.

This invention relates to plows in which the shares are detachable.

The object of the invention is to provide a construction by which the share can be easily attached and detached from the body portion of the plow, the construction being characterized by the simplicity of its parts andits durability.

Another object of the invention is to provide a construction, which, although detachable, will be very rigid and not acci dentally disconnected when the plow is in operation. i

In the accompanying drawings Figure 1 is a perspective view of one form of my improved plow, illustrating one embodiment of iny invention.

Fig. 2 is a similar perspective view, illustrating the frog, the share being detached.

Fig. 3 is a perspective view of the share.

In the embodiment of the invention herein illustrated, I have provided an angular frog 1, provided with a land-side portion 2 and a mold-board portion 3. To the land-side portion is attached the land-side 4:, and to the mold-board portion is attached the moldboard 5. The removable or detachable angular share is indicated at 6 and is provided with a land-side portion 7 adapted to fit against the landside 1 and a mold-board portion 8 adapted to fit against the mold board 5. The land-side, frog and moldboard constitute the body portion of the plow.

The land-side portion of the frog is provided with a forwardly projecting tongue 9 adapted to. slide over the inside of the land-side portion of the share into a loop 10 thereon. In the particular construction herein shown, this loop is attached at one end 11 to the land-side portion of the share and the opposite end thereof is bent up as indicated at 12, and attached to the moldboard portion of the share.

As is clearly shown in Fig. 1, when the tongue 9 projects through the loop 10, one edge of the tongue will lie close against the lower portion of the mold-board portion Specification of Letters Patent.

Patented July 10, 1917.

Serial No. 136,052.

of the share. The frog at the rear and at one side of the projection 9 is provided with a transversely extending edge 18, which, when the share is positioned against the body portion of the plow, engages and abuts the end 11 of the loop forming a stop and abutment therewith. In a like manner, the mold-board portion of the frog is provided with an edge 14 extending at right angles to the tongue, which is adapted to engage the bent up end 12 of the loop and coacts therewith in a similar manner.

lVhen the parts are united the forward edge 15 of the land-side will engage the inner edge 16 of the land-side portion of the share, as is clearly shown in Fig. 1. Fixed to the mold-board portion of the share is an additional loop 17. This loop coacts with the tongue 18 projecting forwardly from the mold board portion of the frog into the same. The forward edge of the mold-board portion of the frog is also provided with a portion 19, which coacts with and abuts a portion of the loop 17, as clearly shown in Fig. 1. 7

hen the tongues and loops above described engage each other and the share is in position against the body portion of the plow, the forward edge 20 of the moldboard will abut the forward edge 21 of the 1nold-board portion of the share, (Fig. 1). In order to retain the outer portions of these edges or the portions thereof remote from the frog in proper alinement, I have provided an additional loop 22 upon the moldboard portion of the share and a tongue 23 upon the mold-board. This tongue is adapted to extend into and under the loop 22 to hold the outer portions in alinement.

The several loops above described can be attached in any suitable manner to the parts upon which they are located, but by preference they are attached to these parts by bolts and nuts, substantially as shown.

It will be seen from an inspection of Fig. 1 that the manner of assembling theshare and body portion of the plow insures a very rigid connection when the parts are assembled. The tongue 9 is at an angle to the tongue 18, so that stresses in directions at right angles may be taken up. Furthermore, it should be noticed that the tongues are located upon a very rigid central frog which increases the strength of theeonnection. In addition to'the tongues 9 and 18 therehas also been provided the tongue 23, which engages the loop 22, which still further strengthens the construction.

In order to draw up the parts into engagement with each other, and to disengage the tongues from the loops, I have provided a suitable operating means, which is characteri'zed by great simplicity and which can be operated easily, but which, when not in use, will be out of the way and not accidentally dislocated. .F or this purpose I have from the pin 25.

supplied the mold-board portion of the share with an upwardly projecting pin 25 which is provided with suitable screwt-hreads. .An angular clamp or member 26 is rovided, having a triangular opening 27 su stantially as shown in Fig. 1, into which the pin 25 projects. The clamp is held in position upon the pin by means of a suitable retaining device, such as a nut 28.

Extending at right angles to the portion of the clamp having the opening is another portion 29 through which extends a rigid stifl link 30 adjustably attached at one end thereto by means of the nuts 31. A lever 32 is pivoted at one end to the mold-board portion of the frog on an axis parallel with the pins and extending at right angles to the frog as indicated at 33. The unattached 'endof the. link 30 is pivoted to the lever 82 on an axis parallel with the axis of the leverlat the point 3 1, which point is remote The axis of the lever being-intermediate the pivotal connection of the link 34 and the pivotal connection of the clamp 26 to the pin 25, it will be seen that as the lever is moved clockwise around its axis, that the distance between the connec- ,tion"34; and the pin 25 will be shortened,

clamping one.

bringing the portion of the clamp adjacent the enlarged part of the opening into engagement with the pin, so that the share will be disengaged or pushed from the tongues, the rigid link causing this disengagement.

It should be noticed further that as the le ver is rotated, the member 26 will be moved to bring the enlarged portion of the triangular :opening .under the nut 28, so that the share can be easily disengaged from the member without removing the nut.

When it is desired to attach the share to the body portionof the plow, the tongues of the body portion are inserted within the loops, the clamp 26 is located upon the pin, and the lever is then rotated counter-clockwise. This movement of the lever counter-clockwise draws the link 30 to the left, (Fig. 1), causes the clamping member 26 to engage the pin and draws the share up into engagement with the land-sideand moldboard. This engagement will be a tight one, and the action will be more or less of a This position of the parts is clearly illustrated in Fig. 1, in which the pivot ofthclever, the connection of the link to the lever, and the connection of the clamp to the pin are in alinement, with the pin projecting through the reduced portion of the opening to prevent the disengagement of the clamping member therefrom.

It will be noticed that when the share is clamped in position against the mold-board and land-side, that the lever lies against the standard 35, substantially as shown. This relation of the standard and lever insures that the lever will remain in fixed position, and not be moved across dead center by chunks of dirt falling on it from above, thereby loosening up the parts. The ar' rangement and location of my lever is such that there is little danger of the lever being moved in the opposite direction during the operation of the plow.

lVhile I have shown and described one embodiment of my invention, it is to be understood that I do not desire to be limited to the details of construction herein shown and described, for obvious modifications and changes will be apparent to anyone skilled in the art.

What is claimed is 1. In a plow, an angular frog, a. moldboard and land-side attached thereto, tongues projecting forwardly from the mold-board and land-side portions of said frog, an angular share having land-side and mold-board portions, a. loop attached at one end to the land-side portion of said share and at its opposite end to the mold-board portion through which one oi said tongues projects and removably engages. and a loop on the mold-board portion of said share with which the other of said tongues removably engages.

2. In a plow, a body portion, a removable share having sliding engagement with said body portion, a lever pivoted to said body portion on an axis extending at right angles thereto and having a handle, a pin projecting upwardly from said share, a. clamping member provided with an opening and removably encircling said pin, a link attached at one end to said clamping member and pivoted. at its opposite end to said lever between the pivot of the latter and the handle and upon an axis extending parallel with the axis of the lever, said lever being movable to cause said clamping member to draw up the share into engagement with the body with tongues and said share with loops into which said tongues project to removably connect the body portion and share together, a lever pivoted to said body portion on an axis extending at right angles thereto, and means detachably connecting said lever to said share to draw up and disengage said share.

5. In a plow, a body portion, a share having a sliding engagement with said body portion, a lever pivoted to said body portion on an axis extending at right angles thereto, a clamping member having a removable engagement with said share, and a link pivoted to said lever between its pivot and handle and connected to said clamping member for drawing up and disengaging said share.

6. In a plow, a body portion having a standard, a share removably engaging said body portion, a lever, a link connecting said lever and share for drawing up and disen gaging the share to and from said body portion, said standard retaining said lever against displacement and said link and lever being in alinement when said share has been drawn up into engagement with the body portion.

7. In a plow, a body portion, a removable share having a sliding engagement with said body portion, a pin projecting from said share, a lever pivoted to said body portion, a clamping member removably engaging and inclosing said pin, a link attached at one end to said clamping member and pivotally connected at its opposite end to said lever, and means for retaining said lever in position to hold said share and body portion clamped together.

8. In a plow, a body portion provided with tongues, a share having loops into which the tongues project for removably connecting the body portion and share, a pin projecting from said share, a lever pivoted to said body portion on an axis extending at right angles thereto, a clamping member removably engaging and inclosing said pin and adjustable thereon, a link attached at one end to said clamping member and having its opposite end pivotally connected to said lever on an axis extending parallel with the axis of the lever, whereby the movements of said lever cause the connecting and disconnecting of said share to and from said body portion.

9. In a plow, a body portion, a share removably attached to said body portion and having a sliding engagement therewith, a pin projecting from said share, a lever pivoted to said body portion on an axis extending parallel with said pin, a clamping member provided with a triangular opening through which said pin projects, means for retaining said pin in engagement with said clamping member, and a link connected at one end to said clamping member and pivotally connected at its opposite end to said lever on an axis parallel with the axis of said lever, the axis of said lever being located between the point of connection of said link to said lever and said pin whereby when the axis and pin are in alinement the body portion and share will be drawn closely together with the pin projecting through the reduced portion of the opening, and whereby when it is desired to disengage the parts, the lever may be moved to cause the portion of the clamping member adjacent the enlarged portion of the opening to engage the pin to push the share to disengage the same, and whereby the pin may be slipped through the enlarged portion of the opening to separate the body portion and share.

In testimony, that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

EDDIE H. THORESON.

Witnesses:

A. E. MoRoK, H. H. THORESON.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. G. 

